// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The  interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode

namespace ASC.Api.Core.Core;

public class CspStartupTask : IStartupTask
{
    private readonly IServiceProvider _provider;
    private readonly IDistributedCache _distributedCache;
    private const string HeaderKey = $"csp";

    public CspStartupTask(IServiceProvider provider, IDistributedCache distributedCache)
    {
        _provider = provider;
        _distributedCache = distributedCache;
    }

    public async Task ExecuteAsync(CancellationToken cancellationToken)
    {
        await using var scope = _provider.CreateAsyncScope();
        var serviceProvider = scope.ServiceProvider;
        var helper = serviceProvider.GetService<CspSettingsHelper>();
        var tenantManager = serviceProvider.GetService<TenantManager>();
        var settingsManager = serviceProvider.GetService<SettingsManager>();

        var oldHeaderValue = await _distributedCache.GetStringAsync(HeaderKey);
        var currentHeaderValue = helper.CreateHeader(null, true, false);

        if (oldHeaderValue != currentHeaderValue)
        {
            var tenantService = serviceProvider.GetService<ITenantService>();

            foreach (var t in tenantService.GetTenantsWithCsp())
            {
                tenantManager.SetCurrentTenant(t);
                var current = settingsManager.Load<CspSettings>();
                await helper.Save(current.Domains, current.SetDefaultIfEmpty);
            }

            await _distributedCache.SetStringAsync(HeaderKey, currentHeaderValue);
        }


    }
}